<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
<table border="1">
    <tr>
        <th>姓名</th>
        <th>年龄</th>
        <th>地址</th>
    </tr>

    <tr>
        <td><?php echo $_POST['user_name'] ?></td>
        <td><?php echo $_POST['user_name'] ?></td>
        <td><?php echo $_POST['user_name'] ?></td>
    </tr>
</table>
</body>
</html>
<?php
//print_r($_POST);
?>
